an afternoon on a sunny day and ride these large sight-seeing boats, that are open air and allow you to see the entire city by sea. for the arts, this museum which houses spectacular murals by monet. for shopping, head to the madison avenue of paris. then grab your walking shoes and head to the champs-elysees. it's a great way to work off a meal. speaking of food, don't forget to buy a real baguette sandwich or a crepe on the street. soon, you'll feel like a native. cnn, paris. try running four.ning a restaurant is hard, fortunately we've got ink. it gives us 5x the rewards on our internet, phone charges and cable, plus at office supply stores. rewards we put right back into our business. this is the only thing we've ever wanted to do and ink helps us do it. make your mark with ink from chase. gives you a low $18.50 monthly plan premium... and select generic hypertension drugs available for only a penny... so you can focus on what really matters. call humana at 1-800-808-4003. >>> we want to continue our conversation we started before the break with lawrence krauss, a theoretical physicist.